/Engine/Source/Runtime/Core/Public/Misc/ExpressionParserTypes.h
Add an expression node to the consumer, specifying theFStringTokenthis node relates to. Adding a node to the consumer will move its stream read position to the end of the added token.
void Add ( const [FStringToken](API\Runtime\Core\Misc\FStringToken) & SourceToken, [FExpressionNode](API\Runtime\Core\Misc\FExpressionNode) && Node )